225661473142 has 16 divisors (see below), whose sum is σ = 389410152192. Its totient is φ = 96071581800.

The previous prime is 225661473139. The next prime is 225661473181. The reversal of 225661473142 is 241374166522.

225661473142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53370988 + ... + 53375215.

It is an arithmetic number, because the mean of its divisors is an integer number (24338134512).

Almost surely, 2^225661473142 is an apocalyptic number.

225661473142 is a deficient number, since it is larger than the sum of its proper divisors (163748679050).

225661473142 is a wasteful number, since it uses less digits than its factorization.

225661473142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106746363.

The product of its digits is 483840, while the sum is 43.

The spelling of 225661473142 in words is "two hundred twenty-five billion, six hundred sixty-one million, four hundred seventy-three thousand, one hundred forty-two".